Felt Paper Under Cedar Siding

Cedar shakes a stylish and sophisticated roofing material.

Felt paper under cedar siding.

Above was my post to demon now there are people here who say you can t use tyvek under cedar because of the tanins in the cedar will eat away at the tyvek. They also require maintenance on a more frequent basis but nothing too drastic. On a sidewall installation with cedar shingles sawn not split like shakes over solid sheathing interwoven felt is unnecessary as long as joints are offset at least one inch laterally. For stucco the standard is two layers of grade d building paper.

Cedar shakes tend to be on the expensive side compared to asphalt shingles or concrete tile. On walls it has been eclipsed in new construction by various brands of house wrap a woven or spun bonded plastic. Nowadays low cost 15 felt can weight as little as 8 to 12 pounds per square 100 sq. The standard weather barrier used traditionally under wood vinyl and other siding materials is 15 pound felt.

It is an age old choice as a weather barrier under roofing and siding. This underlayment is an important line of defense against moisture penetration. I have seen literally hundreds of houses stripped of asbestos siding that had 15 felt under it. Skip sheathing strapping is not amenable to continuous underlayment.

I ve opened up houses built less than 5 years previous and the tyvek was shreaded like old newspaper. Felt paper also commonly referred to as tar paper is an underlayment material applied to bare walls before siding is installed. A continuous felt not plastic wrb is all that s required. First off let s have a look at the drawbacks of cedar roofing since there are so few.

I ll stick with tried and true felt paper. Should any water get past the siding properly installed felt paper. Tar paper also known as building felt is tar impregnated paper.